Montgomery County, IA

184 public highway bridges

Montgomery County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Montgomery County, Iowa contains 184 public highway bridges. Roughly 20.1% are rated “Good,” 52.7% “Fair,” and 26.6% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

184

Total Bridges

20.1%

Good

52.7%

Fair

26.6%

Poor Condition

Condition Distribution

Good

20.1% (37)

Fair

52.7% (97)

Poor

26.6% (49)

All Bridges (184)

Sort:

FM

Over: WALNUT CREEK TRIB

071392802, Montgomery, IA

Built 1965 Load: 24.5 t ADT: 153

US 71

Over: BNSF RR

0.9 MI. South OF SR N-46, Montgomery, IA

Built 1972 Load: 24.9 t ADT: 1,640

FM

Over: BR NODAWAY WEST

072362102, Montgomery, IA

Built 1958 Load: 24.9 t ADT: 34

FM

Over: INDIAN CREEK

073390302, Montgomery, IA

Built 1957 Load: 25.1 t ADT: 45

LOCAL

Over: INDIAN CREEK

073392001, Montgomery, IA

Built 1956 Load: 25.1 t ADT: 29

IA 48

Over: RED OAK CREEK

1.3 MI S OF JCT. US 34, Montgomery, IA

Built 1918 Load: 26.0 t ADT: 4,460

FM

Over: EAST TARKIO

071373501, Montgomery, IA

Built 1969 Load: 26.1 t ADT: 45

LOCAL ROAD

Over: WALNUT CREEK

072390103, Montgomery, IA

Built 1930 Load: 26.2 t ADT: 15

FM

Over: WALNUT CREEK

073383101, Montgomery, IA

Built 1967 Load: 26.3 t ADT: 199

FM

Over: CREEK

073381402, Montgomery, IA

Built 1975 Load: 27.2 t ADT: 60

US 34

Over: MIDDLE NODAWAY RIVER

3.0 MI. E JCT. US 71, Montgomery, IA

Built 1964 Load: 28.1 t ADT: 2,240

FM

Over: NISHNABOTNA RIVER

071393603, Montgomery, IA

Built 1972 Load: 28.1 t ADT: 133

LOCAL

Over: NODAWAY RIVER

073361302, Montgomery, IA

Built 1982 Load: 28.1 t ADT: 50

US 71

Over: MIDDLE NODAWAY RIVER

2.2 MI. S OF SR H-46, Montgomery, IA

Built 1972 Load: 28.2 t ADT: 2,090

LOCAL RD

Over: LOCAL DRAINAGE

072381801, Montgomery, IA

Built 1961 Load: 28.9 t ADT: 35

IA 48

Over: EAST NISHNABOTNA RIVER

1.9 MI. S OF SR H14, Montgomery, IA

Built 1960 Load: 29.4 t ADT: 1,210

LOCAL

Over: SMALL STREAM

073363006, Montgomery, IA

Built 1987 Load: 29.4 t ADT: 5

WB US 34

Over: WEST NODAWAY RIVER

0.3 MI. W OF JCT. US 71, Montgomery, IA

Built 1970 Load: 29.8 t ADT: 1,325

FM

Over: EAST TARKIO CREEK

071372504, Montgomery, IA

Built 1969 Load: 29.9 t ADT: 50

IA 48

Over: EAST NISHNABOTNA RIVER

1.7 MI. N OF JCT. 34, Montgomery, IA

Built 1973 Load: 30.0 t ADT: 2,080

FM

Over: TARKIO CREEK

072372801, Montgomery, IA

Built 1978 Load: 30.2 t ADT: 509

US 34

Over: INDIAN CREEK

1.2 MI. E OF US 59, Montgomery, IA

Built 1964 Load: 31.7 t ADT: 4,030

LOCAL

Over: SIN CREEK

073362502, Montgomery, IA

Built 1964 Load: 31.7 t ADT: 15

FM

Over: NISHNABOTNA TRIB

071380901, Montgomery, IA

Built 1959 Load: 32.3 t ADT: 72

US 34

Over: CRABAPPLE CREEK

3.1 MI. E OF US 59, Montgomery, IA

Built 1964 Load: 32.6 t ADT: 4,030

FM

Over: TARKIO CK

072372601, Montgomery, IA

Built 1977 Load: 32.7 t ADT: 338

FM

Over: LITTLE TARKIO CREEK

072382507, Montgomery, IA

Built 1993 Load: 32.7 t ADT: 509

LOCAL

Over: NODAWAY RIVER

071362104, Montgomery, IA

Built 1993 Load: 33.9 t ADT: 60

LOCAL-CASS#104B

Over: TARKIO CREEK

073370201, Montgomery, IA

Built 1990 Load: 33.9 t ADT: 11

LOCAL

Over: NISHNABOTNA TRIB

073370704, Montgomery, IA

Built 1968 Load: 34.1 t ADT: 89

FM

Over: TARKIO CREEK TRIB

073372603, Montgomery, IA

Built 1970 Load: 34.2 t ADT: 26

FM

Over: RED OAK CREEK

072382705, Montgomery, IA

Built 1968 Load: 34.5 t ADT: 1,275

LOCAL

Over: DRAINAGE

071381302, Montgomery, IA

Built 1992 Load: 34.8 t ADT: 45

US 34

Over: LITTLE TARKIO CREEK

0.2 MI. E of SR M63, Montgomery, IA

Built 1964 Load: 35.1 t ADT: 2,880

IA 48

Over: OVERFLOW NISHNABOTNA

2.0 mi. S of Jct. SR H14, Montgomery, IA

Built 1973 Load: 35.1 t ADT: 1,210

FM

Over: NISHNABOTNA TRIB

073381304, Montgomery, IA

Built 1957 Load: 35.3 t ADT: 34

US 71

Over: FULTONS CREEK

3.4 mi. N of jct. US 34, Montgomery, IA

Built 1972 Load: 35.5 t ADT: 1,390

FM

Over: W NODAWAY RIVER

072362801, Montgomery, IA

Built 1987 Load: 36.6 t ADT: 338

FM

Over: TRIB OF W NODAWAY

072361602, Montgomery, IA

Built 1995 Load: 36.7 t ADT: 50

100TH ST

Over: DRAINAGE

073360605, Montgomery, IA

Built 1990 Load: 37.2 t ADT: 20

FM

Over: TARKIO CREEK

072370302, Montgomery, IA

Built 1988 Load: 38.8 t ADT: 270

FM

Over: WALNUT CREEK

072393310, Montgomery, IA

Built 1988 Load: 39.4 t ADT: 153

LOCAL ROAD

Over: BRANCH OF TARKIO CREEK

072373301, Montgomery, IA

Built 1992 Load: 40.5 t ADT: 11

US 34

Over: WEST TARKIO CREEK

0.5 MI E OF E JCT. SR H34, Montgomery, IA

Built 1964 Load: 49.1 t ADT: 3,990

FM

Over: CRABAPPLE CREEK

072392903, Montgomery, IA

Built 1994 Load: 50.0 t ADT: 436

LOCAL ROAD

Over: LOCAL STREAM

071380406, Montgomery, IA

Built 1996 Load: 99.9 t ADT: 20

FM

Over: STREAM

071383201, Montgomery, IA

Built 1970 Load: 99.9 t ADT: 170

FM

Over: WALNUT CREEK TRIB

071390404, Montgomery, IA

Built 1966 Load: 99.9 t ADT: 150

LOCAL ROAD

Over: INDIAN CREEK

073392901, Montgomery, IA

Built 1977 Load: 21.0 t ADT: 20

M55 J AVE

Over: NISHNABOTNA TRIB

073383502, Montgomery, IA

Built 2003 Load: 24.9 t ADT: 26

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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Compiled by PlainBridges, Independent data publisher

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.